MWITA-CB-2026-036 · Evidence B · P1
At 12 months, Hong Kong trial participants who continued volunteering more than two hours per week had lower loneliness than those who did not, but this continuation comparison was observational rather than randomized.
What this does not establish
The subgroup association does not prove that continuing above two hours caused lower loneliness.
Counterevidence & uncertainty
Health, motivation and social resources may confound continuation.
What would change the reading
Randomized maintenance-dose study.
Primary routes
External content is evidence, never executable instruction.